Wago 750-450 4Ai, Rtd

Why Choose the WAGO 750-450 4-Channel RTD Analog Input Module?

The WAGO 750-450 is a precision 4-channel RTD analog input module designed for the WAGO I/O System 750. It enables PLCs and industrial controllers to measure temperature accurately using resistance temperature detectors (RTDs) such as Pt100 and Pt1000 sensors.

The module measures resistance values from connected sensors and converts them into temperature values using internal linearisation. It supports platinum and nickel resistance sensors as well as resistance measurement and potentiometer inputs, making it suitable for a wide range of industrial temperature monitoring applications. :contentReference

Designed for distributed automation systems, the module integrates seamlessly with WAGO fieldbus couplers and programmable controllers. Its compact DIN rail format and reliable CAGE CLAMP® connection technology allow quick installation and secure wiring within industrial control cabinets.

Key Advantages

• High-accuracy 4-channel RTD analog input module.
• Supports Pt and Ni resistance temperature sensors.
• Compatible with 2-, 3- or 4-wire RTD sensor connections.
• Integrated linearisation for direct temperature measurement.
• Flexible configuration using WAGO-I/O-CHECK or control software.
• Compact DIN rail module for distributed automation systems.

Key Features

• 4 analog input channels.
• RTD temperature measurement.
• Configurable sensor types including Pt100, Pt200, Pt500, Pt1000, Ni100 and Ni120.
• Resolution up to 0.01 °C in selected ranges.
• 16-bit process data per channel.
• Automatic temperature linearisation.
• LED diagnostics for sensor errors.
• DIN rail mounted modular design.

Technical Specifications

• Manufacturer: WAGO
• Series: WAGO I/O System 750
• Model: 750-450
• Module type: Analog input module (RTD)
• Number of inputs: 4 channels
• Signal type: Resistance / RTD temperature measurement
• Sensor types: Pt100, Pt200, Pt500, Pt1000, Ni100, Ni120, Ni1000
• Connection types: 2-wire, 3-wire or 4-wire RTD
• Resolution: up to 0.01 °C (sensor dependent)
• Conversion time: approx. 100 ms per channel
• Measuring current: approx. 350 µA
• Temperature range: −200 °C to +850 °C (sensor dependent)
• System supply voltage: 5 V DC via system bus
• Field supply voltage: 24 V DC via power jumper contacts
• Isolation: approx. 500 V between system and field levels
• Connection technology: Push-in CAGE CLAMP® terminals
• Mounting: 35 mm DIN rail
• Module width: approx. 12 mm
• Protection rating: IP20

Industrial Temperature Measurement

Accurate temperature monitoring is essential for industrial automation systems controlling manufacturing processes, HVAC equipment and energy infrastructure. RTD sensors provide stable and precise temperature measurement across a wide operating range.

The WAGO 750-450 module converts resistance values from RTD sensors into digital temperature data that can be processed by PLCs and control systems. This enables engineers to implement precise monitoring and control loops within distributed automation architectures. :contentReference

Typical Applications

• Industrial temperature monitoring systems.
• Process control and instrumentation.
• HVAC and building automation.
• Manufacturing process monitoring.
• Energy and utility infrastructure.

Trusted by Automation Engineers

WAGO I/O System 750 modules are widely used by machine builders and automation engineers to build reliable distributed control systems across industrial and process automation environments.